Answer:
Step-by-step explanation:
huh
ok
....................................
which expression is undefined?
A.0 ÷ 5
B.(3 - 3)
_____
7
C. 8
_____
(-2+2)
D. (0 - 12)
_____
-6
Answer: C
Work: So, after you simplify that equation, it's 8/0. You Cannot divide zero like that. You can divide 0/8, but you can't with 8/0. I hope this wasn't to confusing, and Happy Holidays! :)
A store sells 4 T-shirts for $38.64. What is the unit cost per T-shirt?
Answer:
9.66
Step-by-step explanation:
38.64/4
9.66
Given the equation y = 2x + 4, what would the value of y be when x = 1?
5
7
1
6
Answer:
6
Step-by-step explanation:
y=2x+4
y=2(1)+4
y=2+4
y=6
Jessica made $95 for 5 hours of work.
At the same rate, how much would she make for 13 hours of work?
Answer:
$247
Step-by-step explanation:
95/5= 19 to find rate per unit which means,
Jessica makes $19 dollars a hour.
19 x 13= $247
So Jessica made $247 in 13 hours of work.
Answer:
she would make $247
Step-by-step explanation:
Use the diagram below to answer the question. There is a small building that is 24 feet tallThe fire fighter is standing 7 feet away from the building.
Answer:
24- 7 = 17
Step-by-step explanation:
Help ASAP anyone :)!!!??!
Answer:j
Step-by-step explanation:
The graph of y=2x^2 is shifted 8 units down on a coordinate grid.
What are the roots of the equation that correspond to the new graph?
A. x=-2 and =2
B. x=-2 and x=4
C. x=-4 and x=2
D. x=-4 and x=4
Answer
x = 2 or x = -2
Option A
Step-by-step explanation:
By shifting it down(we are going 8 units below the origin on the y-axis), we have the equation as;
y = 2x^2 - 8
To find the root, we equate zero
0 = 2x^2 - 8
2x^2 = 8
x^2 = 8/2
x^2 = 4
x = square root of 4
x = +2 or -2
Answer: is A x=y=-2 and x=2
Step-by-step explanation:
What is the value of k?
k=
m
Done
Intro
DOOODDOOO
9514 1404 393
Answer:
k = 2
Step-by-step explanation:
All of the triangles are similar, so the ratio of short side to long side is the same for all.
4/8 = k/4
k = 16/8 = 2 . . . . multiply by 4 and simplify
The value of k is 2.
_____
Additional comment
By similar reasoning or by the Pythagorean theorem, ...
l = √20 = 2√5
m = √80 = 4√5
The length of a rectangle deck is 3 times its width. If the deck's perimeter is 16 ft, what is the deck's area?
Answer:12
Step-by-step explanation:
3x+3x+x+x=16
8x=16 so x =2
2*3=6 6*2=12
Answer:
12 sq ft
Step-by-step explanation:
let w = width
let 3w = length
w + w + 3w + 3w = 16
8w = 16
x = 2
Area = 3(2) x 2
A = 6 x 2
Which of the following statements about air masses is true?
A.
Air masses maintain the same moisture and temperature as they move over new areas.
B.
Air masses are areas of condensed water vapor, which are also known as clouds.
C.
Air masses are responsible for creating holes in the ozone layer.
D.
Air masses are created by patterns of heating and cooling of the Earth's surface.
Air masses are created by patterns of heating and cooling of the Earth's surface. Therefore, option D is the correct answer.
Air masses are large bodies of air that move over the Earth's surface. They are created when large amounts of air are heated and cooled in different areas of the Earth. As the air masses move, they maintain the same moisture, temperature, and other characteristics they had when they originated. Air masses are responsible for many of the weather patterns we experience on Earth.
Therefore, option D is the correct answer.
Learn more about the air masses here:
https://brainly.com/question/29907083.
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Hi. Please i need help with this . No jokes . I need help with (vii) and (ix)
9514 1404 393
Answer:
(vii) 25/4
(ix) -61/6
Step-by-step explanation:
(vii) Once again, we remind you that for ax²+bx+c=0, ...
α+β = -b/a = -(-7/2) = 7/2 = 3.5
αβ = c/a = -3/2 = -1.5
Then the desired expression is ...
α/(β+1) +β/(α+1) = (α² +α +β² +β)/((α+1)(β+1))
= ((α+β)² -2αβ +(α+β))/(αβ +(α+β) +1)
= (3.5² -2(-1.5) +3.5)/(-1.5 +3.5 +1) = 18.75/3 = 6.25 = 25/4
__
(ix) α/β +β/α = (α²+β²)/(αβ)
= ((α+β)² -2αβ)/(αβ) = (3.5² -2(-1.5))/-1.5 = 15.25/-1.5 = -61/6
A grocery store sells a bag 7 oranges for $2.66. if alexandra spent $3.42 on oranges how many did she buy
Answer:
9 oranges
Step-by-step explanation:
7 for 2.66 is 38c for 1
Step-by-step explanation:
if 7 gives 2.66
so 3.42×7÷2.66 gives 9 orange
Please answer quickly, thanks. :) 35 points and if you answer there are more so you can get 250 points
Answer:
11 cars/day
Step-by-step explanation:
What we know:
After two days, Car-Mart has 43 cars left. After 3 days, it is 32. After five, 10 cars.
Saying that, subtract 32 from 43 to get your rate of 11 cars sold a day.
I can further deduce they started with 76 cars. On day 1 they had 65 cars. On day 4 they had 21 cars. They will have sold all of their cars after day 6.
You are selling items at the football game to raise money for the school's athletic teams. You
sell pizza for $5 per slice and drinks for $3 per cup. Your sales totaled $1020. If you sold 84
slices of pizza, how many drinks did you sell?
Need help asapp
Answer:
200 cups of drinks sold
Answer:
200 cups
Step-by-step explanation:
last year raina biked 421 miles this year she biked k miles using k write an expression for the total number of miles she biked
Answer:
i dont know sadly im trying to figure his out too..
Step-by-step explanation: hi
Write 12 1/ 3 as an improper fraction.
Answer:
37/3
Step-by-step explanation:
we start with 12 1/3 multiply the whole number-12 with the denominator-3 that make 36 add the numerator-1 this makes 37, this is your new numerator
Rita is planting saplings along her garden fence. When she started, she had x packages of saplings with 5 saplings per package. She planted 15 saplings and has at most 20 left. How many packages of saplings did she start with? What would the solution look like on a number line graph?
When Rita started, she had
packages of saplings. The solution can be represented as
with an arrow to the
.
Answer:
If we represent x (number of packages of saplings) on a number line graph, it will start on number 4 (number of packages Rita still has) then moves to the right to number 7, that is the number of packages when Rita started to plant.
Step-by-step explanation:
Pleaseeeee helpppp !!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!
Answer:
Square root of 56 so in simplest radical form 4 root 4
Step-by-step explanation:
help meeeeeeeeeeeeee pleasee
Answer:
obtuse triangle because the angle is larger than 90 degrees.
Step-by-step explanation:
Answer:
obtuse
Step-by-step explanation:
A 5-foot piece of string costs $4.20. What is the price per inch?
Answer:
$0.035
Step-by-step explanation:
Answer: 0.84 cents per inch
Step-by-step explanation: Just do division to get your answer:)
Maria made two batches of fruit punch. The table at the right shows how many quarts of juice she used for each batch. Write an equation that relates the proportional quantities. Convince Me! How does the equation change if the amount of grape juice is the independent variable, x, and the amount of apple juice is the dependent variable, y? A table with Apple Juice (x), Grape Juice (y) and Grape Juice/Apple Juice (y/x). The first row has x as 5 and y as 8. The second row has x as 10 and y as 16. In each row, the ratio of Grape Juice to Apple Juice is a blank to be filled. The constant of proportionality is . An equation that represents this proportional relationship is =
Answer/Step-by-step explanation:
The equation that relates the proportional quantities would take the following form ---› [tex] y = kx [/tex], where,
y = amount of Grape juice (dependent variable)
x = amount of Apple juice (independent variable)
k = constant of proportionality (y/x)
✔️Using any of the given pair, say, (5, 8),
Constant of proportionality = [tex] k = \frac{y}{x} = \frac{8}{5} = 1.6 [/tex]
Substitute k = 1.6 in [tex] y = kx [/tex].
An equation that represents the proportional relationship would be:
[tex] y = 1.6x [/tex]
Or
[tex] y = \frac{8}{5}x [/tex]
How the equation would change if:
y = amount of Apple juice (dependent variable)
x = amount of Grape juice (independent variable)
The constant of proportionality would change, that is using a pair, say, (8, 5),
[tex] k = \frac{y}{x} = \frac{5}{8} = 0.625 [/tex]
Substitute k = 0.625 in [tex] y = kx [/tex].
The equation would now be:
[tex] y = 0.625x [/tex].
Or
[tex] y = \frac{5}{8}x [/tex]
Which phrase best describes the translation from the graph y = 2x^2 to the graph of y= 2x^2 + 5?
O5 units up
O5 units down
O 5units right
O5 units left
Answer:
05 units up and down
Step-by-step explanation:
hope this hepled luv!
The phrase that best describes the translation from the graph y = 2x^2 to the graph of y = 2x^2 + 5 is "5 units up".
What is transformation on the graphs?Let the functions f(x) and g(x) be two real functions.
And g (x) = f (x) + k, where k is real numbers.
The function can be sketched by shifting f (x), k units vertically.
The direction of shift can be found by the value of k:
if k > 0, the base graph shifts k units up, and
if k < 0, the base graph shifts k units down.
Adding a constant term to a function vertically shifts its graph up or down, depending on the sign of the constant.
In this case, the constant term is positive (+5), which means that the graph of y = 2x² + 5 is shifted upward by 5 units compared to the graph of y = 2x².
Therefore, the correct phrase is "5 units up".
To learn more about the transformation on the graphs;
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5<-2t-3 Need steps and the answer
Answer:
t<−4
Step-by-step explanation:
switch sides
-2t-3>5
then add three to both sides:
-2t-3+3>5+3
simplify:
-2t>8
then multiply both sides -1 (reverse the inequality)
(-2t)(-1) <8 (-1\)
simplify:
2t<-8
Divide both sides by 2:
2t/2 <-8/2
Answer:&&&&&&
SOrry dont know buddy
Step-by-step explanation:
its not math but I still need helppppp
Answer:
T
Step-by-step explanation:
Lillian and Jacob work at a dry cleaners ironing shirts. Lillian can iron 25 shirts per hour, and Jacob can iron 20 shirts per hour. Lillian and Jacob worked a combined 13 hours and ironed 295 shirts. Determine the number of hours Lillian worked and the number of hours Jacob worked.
Answer:
x=7 y=6
Step-by-step explanation:
x = 7 hous worked by Lillian
y = 6 hours worked by Jacob
Step-by-step explanation:
Let call " x " and " y " numbers of hours Lillian and Jacob worked respectively, then according to problem statement we have:
They both combined a total of 13 hours, therefore
x + y = 13 ⇒ y = 13 - x
And the number of ironed shirts was 295 then we have
25*x + 20*y = 295
We need to solve that system of equations for x and y then
25*x + 20 * ( 13 - x ) = 295
25*x + 260 - 20*x = 295
5*x = 295 - 260
5*x = 35
x = 35/5
x = 7
And y = 13 - x ⇒ y = 13 - 7
y = 6
In the triangle below, what is the length of the hypotenuse?
A. 3√3
B. 6
C. 3√2
D. √3
Answer:
B. 6Step-by-step explanation:
I'd like to begin by apologizing for the late reply.
PROCESS:
1) Begin by analyzing the triangle
2) Notice how you can take the sin of 30 to find the hypotenuse
3) sin30= 3/x
4) If you don't see how I did that, a fun trig word play for functions, is
S O/H
C A/H
T O/A
where
S= Sine
C= Cosine
T= Tangent
O= Opposite
H= Hypotenuse
A= Adjacent
so side opposite of 30 is side 3, and the hypotenuse is x.
5) sin30= 3/x = 6
6) Your answer, hypotenuse is 6
BONUS: If you want to find the base length, use Pythagorean theorem.
c=√a2+b2
b=√c2-a2= √6^2 - 3^2= 5.19 or 5.2
What is the location of the second endpoint if the first endpoint is at (5,2) and
the midpoint is at (-5,5)?
Which is the graph of f(x) = RootIndex 3 StartRoot x EndRoot – 4?
Answer:
please mark me brainliest and follow me my friend.
How could you find the product 19. 14 in your head?
I need the answer ASAP
Answer:
like this do 4x9 4x1 then move down and add a zero then do 1x9 1x1 and then add 76 +190 and get 266 all in your head.
Step-by-step explanation:
19
x 14
_______
76
+ 190
______
266
Please answer correctly will mark brainliest and follow thank you ;)
Answer:
76m
Step-by-step explanation:
Solve perimeter of both rectangles and add
Answer:
238 meters
Step-by-step explanation:
Perimeter? The equation is P = 2 ( l * w )
So lets cut this irregular shape into 2 rectangles.
I added a picture to show you.
So on rectangle is 7 by 11 and the other is 7 by 6.
So lets find the perimeter of the larger rectangle first.
P = 2 ( 11 * 7 )
P = 2 ( 77 )
P = 154
Now the smaller one
P = 2 ( 7 * 6 )
P = 2 ( 42 )
P = 84
Now to find the full perimeter, add both perimeters together
P = 154 + 84
P = 238
238 meters
Don't be afraid to reach out with further questions! Hope this helps!